GCD of 787, 645, 15, 237 Calculator

Given Input numbers are 787, 645, 15, 237

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 787

List of positive integer divisors of 787 that divides 787 without a remainder.

1, 787

Divisors of 645

List of positive integer divisors of 645 that divides 645 without a remainder.

1, 3, 5, 15, 43, 129, 215, 645

Divisors of 15

List of positive integer divisors of 15 that divides 15 without a remainder.

1, 3, 5, 15

Divisors of 237

List of positive integer divisors of 237 that divides 237 without a remainder.

1, 3, 79, 237

Greatest Common Divisior

We found the divisors of 787, 645, 15, 237 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 787, 645, 15, 237 is 1.

Therefore, GCD of numbers 787, 645, 15, 237 is 1

Given Input Data is 787, 645, 15, 237

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 787 is 787

Prime Factorization of 645 is 3 x 5 x 43

Prime Factorization of 15 is 3 x 5

Prime Factorization of 237 is 3 x 79

The above numbers do not have any common prime factor. So GCD is 1

Step1:

Let's calculate the GCD of first two numbers

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(787, 645) = 507615

GCD(787, 645) = ( 787 x 645 ) / 507615

GCD(787, 645) = 507615 / 507615

GCD(787, 645) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 15

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(1, 15) = 15

GCD(1, 15) = ( 1 x 15 ) / 15

GCD(1, 15) = 15 / 15

GCD(1, 15) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 237

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(1, 237) = 237

GCD(1, 237) = ( 1 x 237 ) / 237

GCD(1, 237) = 237 / 237

GCD(1, 237) = 1

GCD of 787, 645, 15, 237 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 397, 912, 34, 863
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• GCD of 585, 352, 92, 351
• GCD of 723, 885, 91, 829

1. What is the GCD of 787, 645, 15, 237?

GCD of 787, 645, 15, 237 is 1

2. Where do I get the detailed procedure to find GCD of 787, 645, 15, 237?

You can find a detailed procedure to find GCD of 787, 645, 15, 237 on our page.

3. How to find GCD of 787, 645, 15, 237 on a calculator?

You can find the GCD of 787, 645, 15, 237 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.